The fourth day of Xbox Live’s ultimate game sale sees titles from the Call of Duty series discounted.

The sale will run until March 4 and sees more than 60 games discounted. So far games from the Halo, Resident Evil, and Assassin’s Creed series have all been discounted. The following games are on sale for today only so be quick.

• Call of Duty: World at War – $9.99
• Call of Duty: Black Ops – $19.99
• Call of Duty: Black Ops 2 – $49.99
• Call of Duty 2 – $9.99
• Call of Duty  – $9.99
• Call of Duty 4: Modern Warfare – $9.99
• Modern Warfare 2 – $9.99
• Modern Warfare 3 – $29.99